A Copper-Catalyzed Three-Component Reaction of Triethoxysilanes, Sulfur Dioxide, and Hydrazines

2014 ◽  
Vol 16 (15) ◽  
pp. 4056-4058 ◽  
Author(s):  
Xianbo Wang ◽  
Lijun Xue ◽  
Zhiyong Wang
Keyword(s):  
Sulfur Dioxide ◽  
Three Component Reaction

Generation of (E)-β-sulfonyl enamines from sulfur dioxide via a radical process

2021 ◽  
Vol 8 (8) ◽  
pp. 1789-1794
Author(s):  
Xiaodong Tu ◽  
Jiapian Huang ◽  
Wenlin Xie ◽  
Tonghao Zhu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Radical Process ◽  
Three Component Reaction

An iron(ii)-catalyzed three-component reaction of O-acyl oximes, sulfur dioxide, and N-vinylacetamides is accomplished. Diverse (E)-β-sulfonyl enamines are obtained in moderate to good yields by using this protocol with excellent stereoselectivity and regioselectivity.

Synthesis of 6-(sulfonylmethyl)phenanthridines through a reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, and vinyl azides

2018 ◽  
Vol 5 (17) ◽  
pp. 2555-2559 ◽  
Author(s):  
Xuefeng Wang ◽  
Yuewen Li ◽  
Guanyinsheng Qiu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Three Component Reaction ◽  
Vinyl Azides

Synthesis of 6-(sulfonylmethyl)phenanthridines through a three-component reaction of aryldiazonium tetrafluoroborates, a sulfur dioxide surrogate of DABCO·(SO2)2, and vinyl azides under metal- and additive-free conditions is achieved.

Benzylic C(sp3)–H bond sulfonylation of 4-methylphenols with the insertion of sulfur dioxide under photocatalysis

2018 ◽  
Vol 54 (79) ◽  
pp. 11172-11175 ◽  
Author(s):  
Xinxing Gong ◽  
Jiahao Chen ◽  
Lifang Lai ◽  
Jiang Cheng ◽  
Jiangtao Sun ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Sodium Metabisulfite ◽  
Three Component Reaction

Sulfonylation of the benzylic C–H bond is developed through a three-component reaction of aryldiazonium tetrafluoroborates, 4-methylphenols and sodium metabisulfite (Na2S2O5). The inorganic sulfite of sodium metabisulfite is used as the SO2 surrogate.

A copper(ii)-catalyzed three-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, with alkenes

2016 ◽  
Vol 3 (11) ◽  
pp. 1498-1502 ◽  
Author(s):  
Runyu Mao ◽  
Zheng Yuan ◽  
Rui Zhang ◽  
Yechun Ding ◽  
Xiaona Fan ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Three Component Reaction ◽  
Efficient Route

A three-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, with alkenes catalyzed by copper(ii) bromide is developed, which provides an efficient route to (E)-alkenyl sulfones or allylic sulfones via the insertion of sulfur dioxide.

C–H bond sulfonylation of anilines with the insertion of sulfur dioxide under metal-free conditions

2018 ◽  
Vol 54 (54) ◽  
pp. 7459-7462 ◽  
Author(s):  
Kaida Zhou ◽  
Jun Zhang ◽  
Lifang Lai ◽  
Jiang Cheng ◽  
Jiangtao Sun ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Metal Catalysts ◽  
Metal Free ◽  
Mild Conditions ◽  
Three Component Reaction

2-Sulfonylanilines are generated in moderate to good yields through a three-component reaction of anilines, DABCO·(SO2)2, and aryldiazonium tetrafluoroborates under mild conditions. No metal catalysts or additives are needed for this transformation.

Photoredox-catalyzed sulfonylation of difluoroenoxysilanes with the insertion of sulfur dioxide

2020 ◽  
Vol 56 (66) ◽  
pp. 9469-9472 ◽  
Author(s):  
Fu-Sheng He ◽  
Yanfang Yao ◽  
Wenlin Xie ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Sodium Metabisulfite ◽  
Silyl Ethers ◽  
Mild Conditions ◽  
Three Component Reaction ◽  
Enol Silyl Ethers

A photoredox-catalyzed three-component reaction of aryldiazonium tetrafluoroborates with sodium metabisulfite and 2,2-difluoro enol silyl ethers is described, providing α,α-difluoro-β-ketosulfones in moderate to good yields under mild conditions.

A copper(i)-catalyzed three-component reaction of triethoxysilanes, sulfur dioxide, and alkyl halides

2016 ◽  
Vol 3 (3) ◽  
pp. 359-363 ◽  
Author(s):  
Danqing Zheng ◽  
Runyu Mao ◽  
Zhiming Li ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Alkyl Halides ◽  
Coupling Process ◽  
Three Component Reaction ◽  
Ligand Free ◽  
Facile Route

A copper(i)-catalyzed three-component reaction of triethoxysilanes, DABCO·(SO2)2, and alkyl halides is reported. This transformation provides a facile route to sulfones under ligand-free conditions catalyzed by copper(i) oxide. The insertion of sulfur dioxide is efficient, and both triethoxyarylsilanes and triethoxyalkylsilanes are practicable during the coupling process.

Photoinduced synthesis of allylic sulfones using potassium metabisulfite as the source of sulfur dioxide

2019 ◽  
Vol 6 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Jun Zhang ◽  
Kaida Zhou ◽  
Guanyinsheng Qiu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Ultraviolet Irradiation ◽  
Room Temperature ◽  
Alkyl Halides ◽  
Three Component Reaction ◽  
Photoinduced Synthesis

Synthesis of allylic sulfones through a photoinduced three-component reaction of aryl/alkyl halides, potassium metabisulfite, and allylic bromides under ultraviolet irradiation at room temperature is developed. Diverse allylic sulfones are generated in moderate to good yields.

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